/*
 * This is written by Lulu Han.
 * E-mail: locomotive_crypto@163.com
 */

#include <iostream>
#include "timer.h"


int main(){
	
	time_point<high_resolution_clock> start;
	
	start = now_time();
	
	long sum = 1;
	for(long i = 1; i < 1000000000; ++i){
		sum *= i;
	}
	
	double tm = time_from(start);
	
	std::cout << "tm is : " << tm << std::endl;
	return 0;
}
